Improvement in shears



E. VAN NORDEN. Shears.

. Ptented Feb. 5, 1878.

WITIJE5EES NITED S'IATES PATEN'I' OFFICE,

EZEKIEL VAN NOORDEN, OF BOSTON, MASSAOHUSE'ITS.

IMPROVEM ENT IN SHEARS.

Speeificationiorming part of Letters Patent No. 199,943, dated Febrna1y 5, 1878; application fi1ed J anuary 2, 1878.

T0 all whom z't may concern:

Be t known that I, EZEKIEL VAN NOORDEN, of Boston, in the county of Suflolk and State of Massaohusetts, h2we invented a new and nseful Improvement in Construoting Shears, whioh improvement is fully set forth and desoribed in the following specifioation and accompanying drawing.

This improvement, a1though it may be applied to any shears, is partcularly useful as applied to shears for outting sheet metal and 1ike material.

The object of my improvement is to' facilitate the outting of the work, espeoially when turning, so as to ohange the direotion of the slit produced by the eutting.

In outting meta1, or any stift or .thiok substanoe, the work gets in the way of the b1ades of the shears when turning a corner or changing the direotion of the out. When a sharp turn is made, the material bein g operated upon, or work, projects and presses against the b1ade, and materia]ly inoreases the 1abor of cutting, besides often injuring the work.

My invention oonsists in the peonliar constrnetion of one or both of the b1ades of the shears, they being bent back, or made to fall away from the ontting-edges and from eaoh other, so as to leave spaoe for the materiai operated upon, as hereinafter more fu1ly de scribed and olaimed.

By means of the peou1iar oonstruetion of the biades of my shears this difficnlty is en tirelyobviated, and the 1abor of outting around a orner very mnoh lessened.

In the drawings, Figure 1 is a side e1evation of a pair of shears embodying rny improvement. Fig. 2is a plan of the same. Fig. 3is a plan view, showing the blades in the act of outtin g a piece of meta1, and showing the positon assumed by the work as the blades are turned in cutting aronnd a corner. Fig. 4 is a transverse section through the line a: w, Fig. 1.

Similar letters of referenoe indioate corresponding parts.

a b represent the two biades of the shears. 0 is a piece of meta1 or other material being out. Eaoh of the blades a and I) is bent back at abont one-eighth inch from its cutting-edge at a short distanoe/rom the pivot.

In ordina-ry shears the blades shut together faoe to faoe, and parallel With eaoh other, the

entire pieoe of metal, of whioh the b1ade and handle are parts, being on a 1ine and at the same angle.

In this invention the blades are bent back from and fal1 away from eaoh other at a greater r 1ess distanee from the pivot whieh separates the blades from the handles, thns forming a ourvatnre at the points en b.

As the result of suoh bending back or falling away of the blades a b, an an1p1e space is provided. for the work being operated upon when turning the shears. 'lhis is illustrated in Ig. 3, where the shears are just tnrning or changing direotion, and the portion 0 of the work finds ample room in the ourvature on, whieh is due to the peouliar shape of theblade a.

A greater or 1ess portion of the blade may bebent back in the manner shown in the drawing, as may be deemed desirable.

Having thus fu11y described my invention, what I claim, and desire to seere by Letters Patent, is

Apair of shears one or both of whose blades are so constrnoted as to bendback or fa11 away from ther cuttingedges and. from eaoh other, in order to provide room for the material operated upon, substantially as herein set orth.

EZEKIEL VAN NOORDEN.

Witnesses HENRY W. \VILLIAMS, JOHN E. TRENNING. 

